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Many articles in recent decades investigated the lightning overvoltage. The researches in this field can be categorized according to methods of solving the equations, ground parameters and lightning channel model. In this chapter for analyzing the lightning induced voltage by 3D FEM method, the problem is modeled in RF module of COMSOL Multiphysics software and the schematic method of modeling is shown in Fig. 5.1. In this modeling height of return stroke channel is 2 km and two directions is chosen for slope of channel (θ and φ). θ is the angle of slope with respect to Z axis and φ is the angle of slope with respect to X axis in the XY coordinate plane. The θ angle is varying from 0° to 30° and the φ angle is varying from 0° to 180°. Ground is two vertical layers which consisted of ocean and land.

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Analyzing the Effect of Incline Return Stroke Channel on the Induced Voltage on the Overhead Line

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  • 发表日期：

    2026年

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  • Behrooz Vahidi,
  • Amin Foroughi Nematolahi

摘要

Many articles in recent decades investigated the lightning overvoltage. The researches in this field can be categorized according to methods of solving the equations, ground parameters and lightning channel model. In this chapter for analyzing the lightning induced voltage by 3D FEM method, the problem is modeled in RF module of COMSOL Multiphysics software and the schematic method of modeling is shown in Fig. 5.1. In this modeling height of return stroke channel is 2 km and two directions is chosen for slope of channel (θ and φ). θ is the angle of slope with respect to Z axis and φ is the angle of slope with respect to X axis in the XY coordinate plane. The θ angle is varying from 0° to 30° and the φ angle is varying from 0° to 180°. Ground is two vertical layers which consisted of ocean and land.